XKEYUNIT

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>>-XKEYUNIT=xxxxxxxx-------------------------------------------><

XKEYUNIT
Specifies the default permanent unit that ZDT/IMS uses when allocating the Extract keys file. The maximum length you can specify for XKEYUNIT is eight (8) bytes. XKEYUNIT is optional. If omitted the SMS storage class specified in PUNIT is used. This parameter can only be specified on the HFM1POPD macro statement.